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"Ecodirect.com is the best ! They are such
a pleasure to work with! They offer all the
best brands at the best prices. Special
thanks to Renée who always answered my
questions on the spot, sharing her real
knowledge and giving me the best advices."
Serge (Tahiti, French
Polynesia)

"The experience I had with my purchase was
very good. The items I ordered arrived when
I expected & were packaged well. My overall
purchasing experience was very
positive."

- Thank you,
Marlene

"I recently found EcoDirect & have been
extremely happy with their service. They
have had all the PV modules, inverters,
optimizers and accessories I needed. They
provide excellent customer service & turn
orders around very quickly. I have switched
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"I wanted to let you know I am very pleased
with the service you gave & the quality &
condition of the solar panels I received
from EcoDirect. I will purchase more items
in the future from EcoDirect and will be
sure to tell others about your fine
operation."

Thanks,
Maurice

"Thanks EcoDirect! My solar system is up
and running; waiting for City and San Diego
Gas & Electric inspections this week; so
far so good!"

- J.L.,
Oceanside, CA

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simple and fast, no issues what so ever. If
I need something else and its at a good
price, I will defiantly order from here
again. Also the shipping is at a good
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- Simon

My shipment arrived on time, as predicted.
Very, very good performance by EcoDirect.
What more could you ask for from an online
material supplier? Looks like the quantity
from Quick Mount is spot on & the rails
were bundled safely. EcoDirect will be my
recommended source to my friends &
neighbors for solar.- Thank you, Jim
Lake
Escondido, CA

"Over the past couple of years, I have
purchased several items from Ecodirect and
I have always been happy with their
customer service and prompt delivery of
products."

This high efficiency modified sine-wave DC-AC inverter converts 12 Volts DC (Nominal) to 2750 watts of AC power at 120 Volts, 60 Hz. The unit comes with a set of battery cable lugs. Output AC power is available by means of hardwire connection (NEMA 5-15R receptacles with 15 Amp breaker optional accessory). Features include overload, over-temperature, low input and high input voltage protection. The front-end LED display indicates battery voltage and output power levels.

Features

Switching mode design

High efficiency

Modified sine wave output voltage

12 VDC input and 120 VAC output

Overload protection

High output current surge

Low battery alarm / shut down

Low idle power draw of less than 0.05 Amps

Compact and light weight

Two output receptacles

Specifications

Model#

Input Voltage

Output Voltage

Dimensions

Output

Fuse Rating

Weight

PSE-12275A

10 to 16.5 (+/- 0.5) VDC

120 Volts RMS

6.3" x 8.5" x 19.5"

2750 Watts

30A x 12

24 lbs

Detailed Description:

Applications

Service vehicles

Mobile Offices

Boats

Recreation Vehicles, Camping

Telecommunication

Field work / Construction sites

Solar power systems

Emergency backup power

Home electronics: TV, VCR, video games

Computers, printers, monitors, fax machines

Tools and appliances

Pure Sine Wave vs. Modified Sine Wave Inverters

What is a Pure Sine-wave Inverter?

The output voltage of a sine-wave inverter has a sine wave-form like the sine wave-form of the mains / utility voltage. In a sine wave, the voltage rises and falls smoothly with a smoothly changing phase angle and also changes its polarity instantly when it crosses 0 Volts.

What is a Modified Sine-wave Inverter?

In a modified sine wave, the voltage rises and falls abruptly, the phase angle also changes abruptly and it sits at 0 Volts for some time before changing its polarity.

What are the advantages of Pure Sine-wave inverters?

The output wave-form is a sine-wave with very low harmonic distortion and clean power like utility supplied electricity

Inductive loads like microwaves and motors run faster, quieter and cooler

Which devices will not function properly from a Modified Sine-wave Inverter?

Any device that uses a control circuitry that senses the phase (for voltage / speed control) or instantaneous zero voltage crossing (for timing control) will not work properly from a voltage that has a modified sine wave-form. Also, as the modified sine wave is a form of square wave, it is comprised of multiple sine waves of odd harmonics (multiples) of the fundamental frequency of the modified sine wave.

For example, a 60 Hz. modified sine wave will consist of sine waves with odd harmonic frequencies of 3rd (180 Hz), 5th (300 Hz.), 7th (420 Hz.) and so on. The high frequency harmonic content in a modified sine wave produces enhanced radio interference, higher heating effect in motors / microwaves and produces overloading due to lowering of the impedance of low frequency filter capacitors / power factor improvement capacitors.

Some examples of devices that may not work properly with modified sine wave and may also get damaged are given below:

Laser printers, photocopiers, magneto-optical hard drives

The built-in clocks in devices such as clock radios, alarm clocks, coffee makers, bread-makers, VCR, microwave ovens etc may not keep time correctly

Output voltage control devices like dimmers, ceiling fan / motor speed control may not work properly (dimming / speed control may not function)

Sewing machines with speed / microprocessor control

Transformer-less capacitive input powered devices like (i) Razors, flashlights, night-lights, smoke detectors etc (ii) Re-chargers for battery packs used in hand power tools. These may get damaged. Please check with the manufacturer of these types of devices for suitability

Devices that use radio frequency signals carried by the AC distribution wiring

Some new furnaces with microprocessor control / Oil burner primary controls

High intensity discharge (HID) lamps like Metal Halide lamps. These may get damaged. Please check with the manufacturer of these types of devices for suitability

Some fluorescent lamps / light fixtures that have power factor correction capacitors. The inverter may shut down indicating overload